Possibly you could go to a library (university with engineering program library) and they hopefully might have some old machinery's handbooks. Most likely such a book would have forged shaft properties.
-John
A number of people have stated a long learning curve with pro/e. I just recently learned it after being in the Navy for 4 years. It seemed no harder to learn then Autocad R12 7-8 yrs ago. I maybe spent 10 hrs on it.. Of course I am not totally proficient but can do solid models assemblies...